feat(tenpaybusiness): 导入项目

2025-09-21 02:58:06 +08:00 · 2022-05-09 19:28:47 +08:00
parent 26b9c17a7d
commit a0a90f4851
102 changed files with 4606 additions and 95 deletions
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/Internal/WechatTenpayClientSignExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/Internal/WechatTenpayClientSignExtensions.cs
@@ -0,0 +1,72 @@
+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
+{
+    internal static class WechatTenpayClientSignExtensions
+    {
+        public static bool VerifySignature(this WechatTenpayClient client, string strTimestamp, string strNonce, string strBody, string strSignature, string strSerialNumber)
+        {
+            return VerifySignature(client, strTimestamp, strNonce, strBody, strSignature, strSerialNumber, Constants.SignSchemes.WECHATPAY2_SHA256_RSA2048, out _);
+        }
+
+        public static bool VerifySignature(this WechatTenpayClient client, string strTimestamp, string strNonce, string strBody, string strSignature, string strSerialNumber, string strSignScheme)
+        {
+            return VerifySignature(client, strTimestamp, strNonce, strBody, strSignature, strSerialNumber, strSignScheme, out _);
+        }
+
+        public static bool VerifySignature(this WechatTenpayClient client, string strTimestamp, string strNonce, string strBody, string strSignature, string strSerialNumber, out Exception? error)
+        {
+            return VerifySignature(client, strTimestamp, strNonce, strBody, strSignature, strSerialNumber, Constants.SignSchemes.WECHATPAY2_SHA256_RSA2048, out error);
+        }
+
+        public static bool VerifySignature(this WechatTenpayClient client, string strTimestamp, string strNonce, string strBody, string strSignature, string strSerialNumber, string strSignScheme, out Exception? error)
+        {
+            if (client == null) throw new ArgumentNullException(nameof(client));
+
+            switch (strSignScheme)
+            {
+                case Constants.SignSchemes.WECHATPAY2_SHA256_RSA2048:
+                    {
+                        if (client.PlatformCertificateManager != null)
+                        {
+                            try
+                            {
+                                var cert = client.PlatformCertificateManager.GetEntry(strSerialNumber);
+                                if (!cert.HasValue)
+                                {
+                                    error = new Exceptions.WechatTenpayEventVerificationException("There is no platform certificate matched the serial number.");
+                                    return false;
+                                }
+
+                                error = null;
+                                return Utilities.RSAUtility.VerifyWithSHA256ByCertificate(
+                                    certificate: cert.Value.Certificate,
+                                    plainText: GetPlainTextForSignature(timestamp: strTimestamp, nonce: strNonce, body: strBody),
+                                    signature: strSignature
+                                );
+                            }
+                            catch (Exception ex)
+                            {
+                                error = ex;
+                                return false;
+                            }
+                        }
+
+                        error = new Exception("There is no platform certificate in the certificate manager.");
+                        return false;
+                    }
+
+                default:
+                    {
+                        error = new Exception("Unsupported sign scheme.");
+                        return false;
+                    }
+            }
+        }
+
+        private static string GetPlainTextForSignature(string timestamp, string nonce, string body)
+        {
+            return $"{timestamp}\n{nonce}\n{body}\n";
+        }
+    }
+}